查询词典 liquefied petroleum gas

Flow regime and void fraction are important parameter in gas-liquid two-phase flow, the relation of differential pressure signal coming from Venturi tube and the flow regime of gas-liquid two-phase flow was studied in this paper, A kind of flow regime identification method of gas-liquid two-phase flow based on Hilbert-Huang Transform and fuzzy inference was put forward, the familiar flow regime identification of gas-oil and gas-water two-phase flow was achieved.

两相流动是一个十分复杂的过程，参数较多，检测相当困难。流型、空隙率是气液两相流中非常重要的参数，而且测量比较困难，还影响两相流其它参数的测量。

This article indicates that when the average temperature of gas in gas-insulated electric equipment is some greater than the temperature of gas density relay then the gas density relay can't reflex the gas density correctly too and gives a positive error.

本文指出，当电气设备内气体平均温度高于密度继电器温度一定程度时，气体密度继电器也不能正确反映电气设备内的气体密度，而出现正误差。

Its working principle is introduced here: when a gas or powder starts a flame or explosion, the ultraviolet sensor will acquire the signal and sent it to the controller to produce the trigger voltage, and then the explosive suppressor will release a great number of gas promptly spraying dry powder extinguishing agents, which thereby form extinguishing agent smoke and effectively extinguish explosion flame. It is rapid and of strong antiinterference ability, high reliability and can be fixed easily. It is capable of effectively suppressing natural gas explosion in the simulative gas explosion test. It can be applied in CNG stations or other site where has explosive and combustible gas whereby to enhance the overall accident control ability.

当发生气体燃烧、爆炸时，紫外传感器接收火焰信号，传送至控制器，控制器产生触发电压，使抑爆器的产气剂释放出大量气体，驱动快速喷撒出干粉灭火剂，形成足够浓度的灭火剂粉雾体，有效扑灭爆炸火焰，具有动作速度快、抗干扰能力强、可靠性高、安装使用方便等优点，在天然气模拟爆炸试验中能有效抑制天然气爆炸，可用于CNG加气站或其他燃烧爆炸性气体场所，提高其整体防灾抗灾能力。

And it is concluded that the No.4-2coal seam is a mid-reserve and low-permeable seam, with surrounding rocks having low enclosed system and high permeability. And the coal seam's gas content is low, while its quantity in the roof-sandstone which is the main source of coalface's gas emission is high . The quantitative index used to analyze gas content and gas emission amount are pointed out systematically. And gray association analysis method is adopted to search the main factors affecting coal-bed content and gas emission amount.

系统提出了分析影响煤层瓦斯含量与采面瓦斯涌出量大小的量化因素指标，并将灰色关联分析原理引入煤层瓦斯含量与瓦斯涌出量主控因素的研究中，筛选出了煤层顶板含油指数，顶板砂泥岩比、4-2号煤层顶板以上煤系厚度3个因素指标为影响4-2号煤层瓦斯含量的主控地质因素；煤层埋藏深度，煤层瓦斯含量，煤层顶板含油气砂岩厚度，煤层顶板含油强度及工作面回采进度5个因素为影响综采面瓦斯涌出量的主控因素。

Wet stack emission will reduce the lifting height of the flue gas, and it's not beneficial to gas diffusion; the momentum of the flue gas should be guaranteed to decrease the plume downwash and to promote gas diffusion; each of the emission index of the wet flue gas can meet the requirements for the environmental protection.

数值计算与分析表明，湿烟囱排放会增强对烟囱的腐蚀性，需采用特殊的防腐处理；湿烟囱直接排放会降低烟气抬升高度，不利于扩散；为减少烟流下洗，增强扩散，应保证烟气的出口动量；湿烟气各项排放指标能满足环保要求。

Products obtained include ethane; liquefied petroleum gases (propane, butanes, propane-butane mixtures, ethane-propane mixtures); isopentane; and other small quantities of finished products, such as motor gasoline, special naphthas, jet fuel, kerosene, and distillate fuel oil.

为什么是平台期呢？石油生产被一系列的条件（经济衰退，石油需求的下降）所约束，其还被政治事件所约束，如战争和革命。

Liquefied petroleum closed the whole line, single-action pump vane pump.

全封闭液化石油气泵系单作用式滑片泵。

Portable camp heaters of other than the catalytic type for use with liquefied petroleum gases; Addenda

ANSI Z21.63b-1984 用液化石油气的非催化型便携式露营加热器。

Along with energy crisis and worsened environment becoming more and more intensively, gas-vehicle receives the unprecedented recognition because of its less emissions, more economical and saving petroleum resource. The research and utilization of gas-vehicle develop quickly all over world. Of course, automotive fuel changing from gasoline and diesel into gas fuel is also carried out blazingly everywhere in our country.

中文题名燃气汽车发动机燃烧特性及工作性能研究副题名外文题名 Study on combustion characteristics and performances of automotive engine by gas fuel 论文作者詹樟松导师夏来庆教授学科专业动力机械及工程研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2001 论文页码总数132页关键词汽车发动机燃气汽车发动机燃烧馆藏号BSLW /2001 /U464 /32 随着能源危机和生态恶化日益严重，燃气（主要指压缩天然气和液化石油气）汽车以其优良的排放、良好的经济性以及能够部分替代紧张的石油资源而受到了空前重视，世界范围内燃气汽车的研究和应用也随之空前高涨。

Ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use

自来水、暖气、冷气、热水、煤气、石油液化气、天然气、沼气、居民用煤炭制品

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。